Android 如何在actionbar中重置图标

我在android程序的ActionBar中添加了一个EditText元素。单击图标时，将显示EditText元素，并在按下return或enter键时输入和捕获数据。如何使EditText元素消失并重新显示图标？当前，EditText字段保留在ActionBar中，图标被隐藏。下面是我的菜单xml文件。感谢您的帮助

       <menu xmlns:android="http://schemas.android.com/apk/res/android" >

<item
    android:id="@+id/action_settings"
    android:orderInCategory="100"
    android:showAsAction="never"
    android:title="@string/action_settings"/>
  <item
    android:id="@+id/herbsearch"
    android:title="HerbSearch"
    android:showAsAction="always"
    android:icon="@android:drawable/ic_menu_search"
    />
   <item
    android:id="@+id/locationchange"
    android:title="Change Location"
    android:showAsAction="ifRoom|collapseActionView"
    android:icon="@drawable/ic_launcher"
    android:actionLayout="@layout/search_layout"
    />

试试这个：

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.main, menu);

    final MenuItem locationItem = menu.findItem(R.id.locationchange);
    View v = (View) locationItem.getActionView();
    EditText locSearch = (EditText) v.findViewById(R.id.txt_search);
    locSearch.requestFocus();

    locSearch.setOnEditorActionListener(new OnEditorActionListener() {
        @Override
        public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
            if (actionId == EditorInfo.IME_ACTION_SEARCH || (event != null && event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) {
                locationItem.collapseActionView();
                return true;
            }
            return false;
        }
    });
}

---

我添加了行final MenuItem locationItem=menu.findItem（R.id.locationchange）；要检索位置更改菜单项，我调用locationItem.collapseActionView（）；取消“操作”视图/搜索视图。

太好了！谢谢你的建议。我插入了最终的MenuItem locationItem=menu.findItem（R.id.locationchange）；onCreateOptions菜单方法中的指令，但只是添加了location.Item.collapseActionView（）；指令，然后在OnEditorActionListener方法中调用GetMap。如果我为最后一条评论而输入itSorry，那就错了。重复-谢谢你的建议。我在调用GetMap（）后插入了您的例程，它的工作方式与我所希望的一样。我知道我必须调用collapseActionView，但我不知道如何获取菜单项，因为我还是个新手。你们在Stack Overflow救了我的命不客气。那么把答案标为正确怎么样？；-）如果你认为我的答案是正确的，那么请接受我的答案。非常感谢。

    @Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.main, menu);

    /** Get the action view of the menu item whose id is search */
    View v = (View) menu.findItem(R.id.locationchange).getActionView();

    /** Get the edit text from the action view */
    EditText locSearch = ( EditText ) v.findViewById(R.id.txt_search);
    locSearch.requestFocus();
    /** Setting an action listener */
    locSearch.setOnEditorActionListener(new OnEditorActionListener() {

        @Override
        public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
        //    Toast.makeText(getBaseContext(), "Search : " + v.getText(), Toast.LENGTH_SHORT).show();

            GetMap(String.valueOf(v.getText()));
            invalidateOptionsMenu();

            /** Get the edit text from the action view */
            EditText locSearch = ( EditText ) v.findViewById(R.id.txt_search);

        // I tried these next 3 instructions with no success
        //   locSearch.setVisibility(1);   

         //  v.setTextColor(Color.WHITE);

        //   v.setVisibility(1);
            return false;

        }
    });
   }

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.main, menu);

    final MenuItem locationItem = menu.findItem(R.id.locationchange);
    View v = (View) locationItem.getActionView();
    EditText locSearch = (EditText) v.findViewById(R.id.txt_search);
    locSearch.requestFocus();

    locSearch.setOnEditorActionListener(new OnEditorActionListener() {
        @Override
        public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
            if (actionId == EditorInfo.IME_ACTION_SEARCH || (event != null && event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) {
                locationItem.collapseActionView();
                return true;
            }
            return false;
        }
    });
}